INTRO TO STOICHIMETRY Flashcards
is equal to 6.02 x 10^23
Avogadro’s number
what is avogadro’s number
6.02 x 10^23
used to count numbers of particles such as atoms, ions, formulas, units, or molecules
mole
quantitative relationship of reactants to products in a chemical reaction
Stoichiometry
the amount of a substance that contains as many entities as there are in exactly 12g of carbon-12
mole
refers to the mass of a single atom of an element
Atomic mass
refers to the total mass of the atom in a molecule
molecular weight
ionic compounds do not form a molecule but a formula unit, and that its mass is called
formula weight or formula mass
is the use of numbers in the form of fractions to convert one unit of measurement to another through cancellation of units
Dimensional Analysis or Factor-Label Method
is a chemical symbol of a substance used to illustrate the composition of a compound
chemical formula
is the actual chemical formula of a compound that reflects the composition of a molecule
molecular formula
is the chemical formula that shows the simple whole number ratios among the atoms of elements in the compound
empirical formula
branch of chem that deals with quantitative analysis of the composition of substances
analytical chemistry
perform quantitative analysis to identify the elements that compose a compound and to determine the structure and chemical formula of a compound
analytical chemists
through this, an unknown substance can be identified and its components can be separated and measured
analytical chemistry
